Fusion Engine Kit, M249

Polarstar's Fusion Engine is a dual solenoid/two solenoid system.

You can quickly change and adjust the weapon's key functions via the FCU (Fire Control Unit), which is no bigger than an AEG's MOSFET, and can easily fit into the stock of an M4 rifle, for example, along with a small Li-po battery.
Using the FCU's five-position joystick and LCD screen, you will be able to easily adjust functions such as the system's cyclic speed, ROF and nozzle timing without the use of tools.

With the Fusion Engine in your weapon, you will also be able to adjust your muzzle velocity via your Air Rig (sold separately). Adjusting the PSI output on your Air Rig allows you to fine-tune your rifle's muzzle velocity so you can always get it exactly how you want it. For larger velocity changes, we offer a range of nozzles with varying inner diameters for greater throughput. The different nozzles are color-coded so you can keep track of which nozzle is best suited for the desired muzzle velocity in relation to the selected PSI.

The best part is that the system is extremely user-friendly, with very little maintenance. Even if you only have a basic understanding of an airsoft rifle, you will find that maintaining and adjusting this system is very simple and does not require a degree in “airsoft engineering” to figure out.

Features:
- Designed and manufactured in the USA.
- Produced from CNC-milled aluminum.
- Adjustable four modes Semi/Full Auto, Semi/burst (1-9 shots), Burst/Auto or Semi/Semi.
- Choose between Open Bolt or Closed Bolt.
- Adjustable output speed and ROF (Rate Of Fire).
- Possibility of replacing Nozzle and Poppet, for air saving.
- "Easy to use" Fire Control Unit (FCU) with LCD display and joystick.
- Instant trigger response.
- Compatible with AEG barrels and hop-ups, offering a huge range of barrels/hop-ups, as well as the use of AEG magazines.
- Plays without problems in all types of weather.